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Old 09-29-2001, 06:28 PM   #1
RoryB
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Question CAI- Likes, dislikes?

Hey guys, I'd like some help. I've heard of just about every CAI for the impreza, but would like some feedback from my fellow Legacy folk to help me select a CAI. I do have concerns with torque loss as the Legacy is so much slower (ie Heavy) compared to impreza. If any of you Legacy owners have a CAI installed, I'd love to hear from you, good or bad, either here or feel free to e-mail me. Thanks for any info/experience you have.
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Old 10-01-2001, 12:16 AM   #2
Benjamin Tang
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i bought a jcsports cai from GTBGUY... but with shipping screwups (no thanks to canada post), and the terrorist incident, i waited a very very long time for everything to arrive and i was anxious to install it asap. promptly after install i blew out my mass-air sensor, which cost me a small fortune

it works well. don't expect your sube to become a porsche though. whatever induction noise is lost inside the fender and can only be heard outside the car (very loud), and amazingly sounds almost stock inside the car. i omitted the intake hose from the fender to the front bumper because it rains alot here and i don't want to risk any chance of hydrolocking. that, and the fact i cannot use the front bumper opening because i will have a fog light in it.

i have no dyno numbers. i don't know if i even can do it since i'm not aware of an awd dyno in my area. but midrange feels better... around 3k rpms and up. my top end still isn't that great, which is probably attributed to the fact our legacy is a 4AT. no loss in bottom end.

my cai was not shipped with brackets. i've had to get brackets made, which i did too late, which led to the broken sensor. my problem right now is vibration transmitted thru the intake thru the brackets into the frame of the car, which is sometimes uncomfortable when stopped at idle. i still haven't resolved this.

ben

Last edited by Benjamin Tang; 10-01-2001 at 12:23 AM.
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Old 10-01-2001, 10:45 AM   #3
GTBGUY
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Ben - If you have any silicon hoses or heater hose, you could cut a small piece of that, drill a hole and place it between the frame and bracket, this will absorb some vibrations.
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Old 10-01-2001, 12:15 PM   #4
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I bought a Ganzflow from Larry (ImprezaRS dot com) and have noticed an increase in power, or "umph" by my a** dyno. It definitely pulls better than when stock. Much like Benjamin said, I can't hear anything inside the car when the windows are up, although if I have everything open, under hard acceleration I can easily hear the sucking/whooshing sound from the intake, but it's not bad. (I actually like the sound )

As for shipping and such, it was rather quick, like about a week (actually maybe less then) from actual purchase to my door. Although I did buy this back in June, so in light of the recent events, it could be slightly longer.

Overall I am very pleased with it, and would recommend getting a CAI for your legacy.

AKSubie

Last edited by AKSubie; 10-02-2001 at 12:14 PM.
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Old 10-01-2001, 08:46 PM   #5
RoryB
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Unhappy Thanks

I was almost hoping for someone to tell me a horror story about how they hated one CAI in particular to help narrow my decision.

Another related question, do the JC Sports and Ganzflow keep the stock torque box? If not have you noticed a drop in torque?
I'm less concerned with specific numbers more with real life noticible feel.
Thanks again.
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Old 10-01-2001, 10:07 PM   #6
Benjamin Tang
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i have an ej22 that doesn't have the torque box, so i cannot comment...

ben
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Old 10-01-2001, 11:48 PM   #7
dvancleve
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Lightbulb Re: CAI- Likes, dislikes?

RoryB,

I would try the Peaty version of the snorkusektomy first. Maybe it will give you what you're after for a few bucks and if nothing else will give you an idea of what it's like. You need a package of self adhsive neoprene weather stripping from Home Depot and about 1/2 an hour (and some hand tools). It should give a boost, and you get that humming/sucking sound at idle.

Doug

Quote:
Originally posted by RoryB
Hey guys, I'd like some help. I've heard of just about every CAI for the impreza, but would like some feedback from my fellow Legacy folk to help me select a CAI. I do have concerns with torque loss as the Legacy is so much slower (ie Heavy) compared to impreza. If any of you Legacy owners have a CAI installed, I'd love to hear from you, good or bad, either here or feel free to e-mail me. Thanks for any info/experience you have.
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Old 10-02-2001, 09:59 AM   #8
lustreking
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Depending on what year he has, the snorkusectomy my not apply. I know on my parents '99 Legacy, it doesn't.

Anyway, I performed the snorkusectomy to my '95 a while ago, and tested it, before and after, with a g-tech pro. I found that performing the mod gave NO performance benefits. It does, however, make the car sound cool, but unfortunately sound is one of the inputs to the butt dyno.

Here are the results that I came up with, more can be found on my page.




0-60(s) 1/4mi(s) 1/4 mile speed (mph)
With K&N drop-in filter 8.66 16.73 85.3
Snorkasectomy 8.84 16.90 85.0


-Steve
www.lustreking.com
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Old 10-02-2001, 12:11 PM   #9
AKSubie
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RoryB - about the torque box, I honestly can not say if I did or didn't keep it, because I am a newbie, I don't really know what that is . I did keep the factoy airbox with a drop in K&N though, and then the Ganzflow from the fender to the factory airbox.

As for torque loss/gain, if you are talking about the "pull" of the car then I have noticed a slight increase from 2.8-4k . I haven't noticed any loss.

I am not familar with Peaty's snorkusektomy, therefore I do not know how it differs from other CAIs. I do think there is some power to be gained from adding a CAI, otherwise everyone wouldn't be doing it.

just my $.02 though
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Old 10-02-2001, 12:17 PM   #10
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I'm getting a Minnam intake pipe with a Trust filter put on my 2001 Legacy today (or tomorrow). I'll post the results after. I used it on my Impreza before and it sounded great. Really makes the engine sound how it should but little if any noticable performance gains. I'm going to look at getting an AFC next to really put the extra air to good use.
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Old 10-02-2001, 02:05 PM   #11
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RoryB-

I don't think the Ganzflow will work on a phase I ej25 like yours (and mine). I had a JC intake but went back to the stock set up. Without the torque box, the car was starved for oxygen under sudden, big, pedal inputs. this resulted in a couple scary moments. Like on an entrance ramp with a big rig barrelling down the lane I want to merge in, burying the gas and the car going *choke* "hang on a sec" *choke* Vroom! I suspected the intake was to blame, and this was confirmed by a couple of folks both on and off this forum. I notice subiegal's new intake keeps the box......

I'd like to develop a CAI that keeps the box. When I have time!

So all that hassle with the snorkus was for nothing, huh? Suspected as much. Rats.
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Old 10-02-2001, 02:18 PM   #12
Benjamin Tang
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does ne1 here have pics of how their air sensors are braced? since my jcsports didn't come with anything i'm not sure if my homeade stuff is enough. if i break another sensor again...

ben
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Old 10-02-2001, 04:48 PM   #13
dvancleve
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Question Hmmm...

So the snorkusectomy doesn't really do anything but add noise (at least on a 2.2)... I don't really like the humming at idle. I have been thinking about keeping the cold air part of the mod, but modifying the chamber and putting it back in. I would keep the fender hole blocked off and cut the snorkus where that first big ridge is so that the mounting point and the big chamber remained but the saxophone looking part is gone. It seems to me that this would be colder and better flow than stock but keep almost all of the acoustic parts. What do you guys think?

Doug

Quote:
Originally posted by lustreking
Depending on what year he has, the snorkusectomy my not apply. I know on my parents '99 Legacy, it doesn't.

Anyway, I performed the snorkusectomy to my '95 a while ago, and tested it, before and after, with a g-tech pro. I found that performing the mod gave NO performance benefits. It does, however, make the car sound cool, but unfortunately sound is one of the inputs to the butt dyno.

Here are the results that I came up with, more can be found on my page.




0-60(s) 1/4mi(s) 1/4 mile speed (mph)
With K&N drop-in filter 8.66 16.73 85.3
Snorkasectomy 8.84 16.90 85.0


-Steve
www.lustreking.com
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Old 10-02-2001, 05:56 PM   #14
RoryB
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Default Hmmmm...

AKSubie, I'm no expert either, but from what I understand (learning as I go) the torque box is the big plastic thingy (I'm sure thats the REAL tech term) that the tube from the stock air box runs into. This is supposed to keep a reserve of air to boost low end torque. ( If I am wrong, anyone please feel free to take me to school, like I said I'm learning from others as I go, I may be grossly misinformed)
Lucien- thanks for the input that was what I was afraid of. My friend is working on a design but he wanted to lose the torque box. I guess we'll have to rework the design. I'll post pictures/info when I do anything.
Dvancleve-thanks, but from the sounds of it snorkelectomy does nothing but sound. I'm really looking for performance gain (the sound is just a nice bonus ) If whatever I end up doing ends up working I'll let all you guys know.
Thanks Legacy folks...
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Old 10-02-2001, 07:16 PM   #15
rallysquirrel
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I've got the JC Sports intake and it gets rid of the stock box. You will lose low end torque, but gain up top. For the price I'd go with the chip.
Both will give you power and better fuel economy (from what I've heard). I did notice a gain in about 2mpg from the intake. If I were to do this all over again, I'd keep my stock box and go with something like what Larry at ImprezaRS.com is selling. IMHO.
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Old 10-02-2001, 09:55 PM   #16
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Aloooooooooha..
Just today..I put on a Weapon "R" Legacy Intake on he Wifes 97 GT...made a huge difference in the midrange...It was a fairly easy install as I only cussed once....As soon as I had put it on I got a CEL..No biggie...Reset...snugged up all the vacuum lines and fired her up..definately woke the thing up above 3000 RPM's...Pulled nice and hard to redline...no hesitation and no flatspots...
Got the intake used..but Teagues Auto has new ones in stock..not sure on price...just give him a call...My RS has a Ganzflow..but thats just temporary until I build my Turbo motor...again..
Hope this helps...

Scooby South
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Old 10-02-2001, 10:01 PM   #17
Benjamin Tang
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how do u reset a cel? i had to go to the dealer to reset and the cel came back... after a "0.6 diagnostic check" (according to service order) i had a blow sensor

ben
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Old 10-02-2001, 10:17 PM   #18
Scooby South
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To Reset the CEL..Unhook the Neg Battery Terminal for 20 mins...that resets the ECU...then turn your car on and let it idle for a few minutes...That lets the ECU Relearn itself...

Cheers..
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Old 10-03-2001, 01:09 AM   #19
Benjamin Tang
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how do u reset a cel? i had to go to the dealer to reset and the cel came back... after a "0.6hr diagnostic check" (according to service order) i had a blown sensor... and suddenly my wallet was much lighter.

ben
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Old 10-03-2001, 08:23 AM   #20
Radio Flyer
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Exclamation

<i>Benjamin "JDM Teaser" Tang:</i> Resetting the ECU (pulling the neg terminal ***91;or fuse SBF#2&#93) should reset the CEL as well. If the CEL comes back on right away, I'd have to make a wild guess that you have a problem.

&nbsp;&nbsp;- Eric
&nbsp;&nbsp;&nbsp;&nbsp;'98 2.5 GT Wagon - Pics - Page -
&nbsp;&nbsp;&nbsp;&nbsp;ICQ #: 9292601
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Old 10-03-2001, 02:09 PM   #21
MY99 2.5GT
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Weapon R Hyper

It woke the 3-5k rpm range. Maybe 2-5 more hp from 5500-6250 a lot more noise though.

Brad
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Old 10-03-2001, 07:27 PM   #22
RoryB
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Question Attn: Brad (MY99)

I see your weapon-r loses the factory torque box. Have you noticed a drop in low end power at all? If so is it a big difference?
Scooby South- Same question? How is your low end after weapon-r install?
rallysquirrel- I was under the assumption that a chip was much more costly? Do you happen to know prices? I didn't even bother looking because I assumed the CAI was one of the least expensive mods.
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Old 10-04-2001, 07:42 AM   #23
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If I lost lowend...I havn't noticed...it just pulls harder than it did before...I have the same intake..only polished and it has a dragon filter..I will take a pic of it later..
If I did loose lowend, it was very slight...(not enough to monitor)..I had to make a bracket to hold mine...Like I say..Mine was used...but worth the money I paid for it...
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Old 10-06-2001, 06:30 AM   #24
tora
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I just installed a minnam intake pipe with a Trust (GReddy) filter. Sounds great, deep and throaty roar from the engine at WOT. Power differences is slightly noticeable. Sounds is the big improvement. I installed an Apex N1 muffler (axle back only for the time being) so it's hard to say which attributes to the better feeling of power. My engine is lowder than my exhaust at WOT. Very pleased with both. At regular throttle the car is quite discreet.
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